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https://issues.apache.org/jira/browse/PIG-3473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aniket Mokashi updated PIG-3473:
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Fix Version/s: (was: 0.13.0)
0.14.0
> org.apache.pig.Expression should support "is null" and "not" operations
> -----------------------------------------------------------------------
>
> Key: PIG-3473
> URL: https://issues.apache.org/jira/browse/PIG-3473
> Project: Pig
> Issue Type: Improvement
> Components: impl
> Affects Versions: 0.11.1
> Reporter: Aniket Mokashi
> Fix For: 0.14.0
>
>
> Currently Expression only support BinaryExpressions and Constants. Most of
> the other logical expressions (cast, udf) need not be pushed down. But, it
> would make sense to be able to pushdown is null and not operations (possibly
> negativeexpression).
> This change would have impact on LoadFunc's (hcatloader), we need to be
> careful and make sure we do this in a backwards compatible way.
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